WAC 388-489-0020
| WSR Filing Number | Type of Filing | Date of Filing |
| 13-18-005 | Permanent Rule | 8/22/2013 |
| 13-11-025 | Proposal Original Notice | 5/08/2013 |
| 10-13-047 | Permanent Rule | 6/09/2010 |
| 10-09-054 | Proposal Original Notice | 4/16/2010 |
| 07-16-085 | Preproposal Statement of Inquiry Withdrawl | 7/30/2007 |
| 05-23-011 | Preproposal Statement of Inquiry | 11/04/2005 |
| 05-19-060 | Permanent Rule | 9/16/2005 |
| 05-16-054 | Proposal Original Notice | 7/28/2005 |
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